44961665019 has 8 divisors (see below), whose sum is σ = 60049983312. Its totient is φ = 29923895040.

The previous prime is 44961665017. The next prime is 44961665071. The reversal of 44961665019 is 91056616944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44961665019 - 2¹ = 44961665017 is a prime.

It is a super-2 number, since 2×44961665019² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (44961665017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12635002 + ... + 12638559.

It is an arithmetic number, because the mean of its divisors is an integer number (7506247914).

Almost surely, 2^44961665019 is an apocalyptic number.

44961665019 is a deficient number, since it is larger than the sum of its proper divisors (15088318293).

44961665019 is a wasteful number, since it uses less digits than its factorization.

44961665019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25274157.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 44961665019 in words is "forty-four billion, nine hundred sixty-one million, six hundred sixty-five thousand, nineteen".